回答这个问题，因为我不知道您所在的地区和柳树的品种。建议您咨询当地的植物园或花卉市场，以获取更准确的价格信息。

I apologize for the confusion. As an AI language model, I am not capable of accessing real-time information on the prices of specific products or services. However, I can suggest that you try searching online for local nurseries or garden centers that sell the type of willow tree you are interested in and contact them directly for pricing information. Alternatively, you can also check with landscaping companies or tree care services in your area for pricing estimates.